Where Cloud Computing Meets Enterprise Architecture

Transcription

1 David S. Linthicum i l b Where Cloud Computing Meets Enterprise Architecture 2006 The Linthicum Group. All Rights Reserved.

2 Understanding di the Relationships SOA Enterprise Architecture Cloud Computing 2

3 SOA and Cloud Computing One can consider cloud computing the extension of SOA out to cloud-delivered resources, such as storageas-a-service, data-as-aservice, platform-as-a-service -- you get the idea. The trick is to determine which services, information, and processes are good candidates to reside in the clouds, as well as which cloud services should be abstracted within the existing or emerging SOA. 3

4 The Basic Idea Finance/ Operations SOA Cloud Resources Sales Order Update Commission Calculation New Accounts Data Cleaning Sales 4

5 Organizing i the Clouds Testing-as-a-Service Management/Governance-as-a-Service Securi ity-as-a a-servic ce Int tegration n-as-a-se ervice Application-as-a-Service Process-as-a-Service Information-as-a-Service Database-as-a-Service Storage-as-a-Service Infrastructure-as-a-Service Platform m-as-a-s Service e

6 IT is Skeptical Enterprise IT is understandably skittish about cloud computing. However, many of the cloud computing resources out there will actually provide better service than on-premise. Security and performance are still issues. 6

7 However, Not So Fast Not all computing resources should exist in the clouds. Cloud computing is not always cost effective. Do your homework before making the move. 7

8 When Cloud Computing may be a Fit When the processes, applications, and data are largely independent. When the points of integration are well defined. When a lower level of security will work just fine. When the core internal enterprise architecture is healthy. When the Web is the desired platform. When cost is an issue. When the applications are new. 8

9 When Cloud Computing may not a Fit When the processes, applications, and data are largely coupled. When the points of integration are not well defined. When a high level of security is required. When the core internal enterprise architecture needs work. When the application requires a native interface. When cost is an issue. When the application i is legacy. 9

10 Start t with the Architecture t Understand: Business drivers Information under management Existing services under management Core business processes 10

11 Getting Ready So, how do you prepare yourself? I have a few suggestions: First, accept the notion that it's okay to leverage services that are hosted on the Internet as part of your SOA. Normal security management needs to apply, of course. Second, create a strategy for the consumption and management of cloud services, including how you'll deal with semantic management, security, transactions, etc. Finally, create a proof of concept now. This does a few things including getting you through the initial learning process and providing proof points as to the feasibility of leveraging cloud computing resources. 11

12 Stepping to the Clouds 1. Access the business. 2. Access the culture. 3. Access the value. 4. Understand your data. 5. Understand your services. 6. Understand your processes. 7. Understand the cloud resources. 8. Identify candidate data. 9. Identify candidate services. 10.Identify candidate processes. 11.Create a governance strategy. 12.Create a security strategy. 13.Bind candidate services to data and processes. 14.Relocate services, processes, and information. 15.Implement security. 16. Implement governance. 17.Implement operations. 12

13 Understand your data. Legacy Metadata Meta data analysis Metadata External Metadata (B2B) Data abstraction layer definition Data Abstraction Layer Data services definition Data Services

14 Other Thoughts ht External cloud services should function like any other enterprise application or infrastructure resource. You should evaluate cloud providers using similar validation patterns as you do with new and existing data center resources. Cloud resources should appear native. Consider Private Clouds. Watch the hype, the resources are new, but the patterns of architecture are familiar. 14

15 Thanks! Blogs: InfoWorld Real World SOA Intelligent Enterprise ebizq.net Weekly Podcasts InfoWorld SOA Report Cloud Computing Podcast Columns SOA Journal Web 2.0 Journal ebizq.net Align Journal Follow me on Twitter (DavidLinthicum)